package com.xxx.lease.web.admin.custom.converter;

import com.xxx.lease.model.enums.BaseEnum;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.stereotype.Component;

/*
*   自定义的类型转换器
*   可以把字符串转成任意的枚举类型BaseEnum
*
*   targetType: 目标类型（枚举类）
* */
@Component
public class StringToBaseEnumConverterFactory implements ConverterFactory<String, BaseEnum> {

    @Override
    public <T extends BaseEnum> Converter<String, T> getConverter(Class<T> targetType) {

        return new Converter<String, T>() {
            @Override
            public T convert(String source) {
                for (T enumConstant : targetType.getEnumConstants()) {
                    if (enumConstant.getCode().equals(Integer.parseInt(source))) {
                        return enumConstant;
                    }
                }
                throw new IllegalArgumentException("source是非法的参数");
            }
        };


    }
}
